三菱fx3u，FX2N PLC同温度控制模块通讯实例，希望对工控的培养有用-Mitsubishi fx3u, FX2N PLC Communication with the temperature control module instance, want to be useful for the cultivation of industrial control

制冷中央空调温度控制，使用西门子的PLC-Central air conditioning cooling temperature control, use of Siemens PLC

这是一个西门子PLC300的控制程序。有多路I/O，通过PLC内部的PID模块进行温度控制。控制精度在0.1摄氏度。-This is a SIEMENS PLC300 control program. There are multiple I/O, through the PID internal PLC module for temperature control. The control precision at 0.1 degrees celsius.